Ans: 18
Ques: Born and raised on the Portuguese island of Madeira, Ronaldo was diagnosed with a racing heart at age 15. He underwent an operation to treat his condition, and began his senior club career playing for Sporting CP, before signing with Manchester United at age 18 in 2003. After winning his first trophy, the FA Cup, during his first season in England, he helped United win three successive Premier League titles, a UEFA Champions League title, and a FIFA Club World Cup. By age 22, he had received Ballon d'Or and FIFA World Player of the Year nominations and at age 23, he won his first Ballon d'Or and FIFA World Player of the Year awards. In 2009, Ronaldo was the subject of the most expensive association football transfer when he moved from Manchester United to Real Madrid in a transfer worth € 94 million (£ 80 million).

Based on this passage, how old was ronaldo when he went to manchester united?
CoT: To answer this question, we should know that: He underwent an operation to treat his condition, and began his senior club career playing for Sporting CP, before signing with Manchester United at age 18 in 2003.
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Ans: William Payne Stewart
Ques: William Payne Stewart (January 30, 1957 -- October 25, 1999) was an American professional golfer who won eleven PGA Tour events, including three major championships in his career, the last of which occurred a few months before he died in an airplane accident at the age of 42.

Who was the golfer who died in a plane crash?
CoT: The relevant information to answer the above question is: William Payne Stewart (January 30, 1957 -- October 25, 1999) was an American professional golfer who won eleven PGA Tour events, including three major championships in his career, the last of which occurred a few months before he died in an airplane accident at the age of 42.
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Ans: Alberta

Ques: Oil reserves in Canada were estimated at 172 billion barrels (27 × 10 ^ m) as of the start of 2015. This figure includes the oil sands reserves that are estimated by government regulators to be economically producible at current prices using current technology. According to this figure, Canada's reserves are third only to Venezuela and Saudi Arabia. Over 95 % of these reserves are in the oil sands deposits in the province of Alberta. Alberta contains nearly all of Canada's oil sands and much of its conventional oil reserves. The balance is concentrated in several other provinces and territories. Saskatchewan and offshore areas of Newfoundland in particular have substantial oil production and reserves. Alberta has 39 % of Canada's remaining conventional oil reserves, offshore Newfoundland 28 % and Saskatchewan 27 %, but if oil sands are included, Alberta's share is over 98 %.

Answer this question based on the passage: where in canada are most of our oil/gas reserves?
CoT: This is the relevant information: Over 95 % of these reserves are in the oil sands deposits in the province of Alberta.
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